Plant list:
Mahonia bealei (6–9)
Camellia × hiemalis 'Quintessence' (7–9)
Sarcococca hookeriana var. digyna 'Purple Stem' (6–9)
Coronilla valentina subsp. glauca 'Citrina' (7–10)
Lonicera × purpusii 'Winter Beauty' (4–8)
Salvia rosmarinus Prostratus Group (8–10)
Hamamelis mollis (5–9)
Corylus avellana (4–8)
Corylus maxima 'Rote Zellernuss' (4–8)